Not sure what you mean by 'barking on.' If you mean pointing out that we have been in relegation form for quite a while then I really don't see the problem in pointing it out. No one wants it to be the case, but it is a fact. I haven't seen many posters asking for Adkins to be sacked, but if there have been any, I would suggest they are in a very small minority and clearly saying something like that is ridiculous. Wondering whether Adkins has been found out a bit isn't the same thing though and I think something like that is worth discussing even if I'm not sure if I necessarily agree.
It's perfectly possible to get behind the team but at the same time expressing frustration at our lack of form. The club are not impervious to criticism.